19718910

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{367}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 52992000

約数和(自身を除く): 33273090

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 199, 270, 367, 398, 597, 734, 995, 1101, 1194, 1791, 1835, 1990, 2202, 2985, 3303, 3582, 3670, 5373, 5505, 5970, 6606, 8955, 9909, 10746, 11010, 16515, 17910, 19818, 26865, 33030, 49545, 53730, 73033, 99090, 146066, 219099, 365165, 438198, 657297, 730330, 1095495, 1314594, 1971891, 2190990, 3286485, 3943782, 6572970, 9859455, 19718910]

約数ペア:

[(1, 19718910), (2, 9859455), (3, 6572970), (5, 3943782), (6, 3286485), (9, 2190990), (10, 1971891), (15, 1314594), (18, 1095495), (27, 730330), (30, 657297), (45, 438198), (54, 365165), (90, 219099), (135, 146066), (199, 99090), (270, 73033), (367, 53730), (398, 49545), (597, 33030), (734, 26865), (995, 19818), (1101, 17910), (1194, 16515), (1791, 11010), (1835, 10746), (1990, 9909), (2202, 8955), (2985, 6606), (3303, 5970), (3582, 5505), (3670, 5373)]